<!DOCTYPE html>
<html>
    <head>
        <title>hello</title>
    </head>
    <body>
        <span>数量是</span>  {{ a }}
        <br/>
        {% for i in b %}
            {{ i.name }}
            {{ i.gender }}
            {{ i.age }}
            {{ i.email }}
            {{ i.phone }}
            <br/>
        {% endfor %}
    </body>
</html>